Amal Wanigatunga, PhD, MPH, is an Assistant Professor in the Department of Epidemiology at the Johns Hopkins Bloomberg School of Public Health. His research focuses on aging, physical activity, and their impact on brain health. As a core faculty member at the Johns Hopkins Center on Aging and Health, Wanigatunga investigates how lifestyle factors influence cognitive decline and overall well-being in older adults. His work utilizes wearable technology to track physical activity and assess its role in preventing age-related diseases, including dementia.